1991 BMW 518 vs. 2013 Porsche Cayenne
To start off, 2013 Porsche Cayenne is newer by 22 year(s). Which means there will be less support and parts availability for 1991 BMW 518. In addition, the cost of maintenance, including insurance, on 1991 BMW 518 would be higher. At 4,800 cc (8 cylinders), 2013 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2013 Porsche Cayenne (414 HP @ 6500 RPM) has 300 more horse power than 1991 BMW 518. (114 HP @ 5500 RPM) In normal driving conditions, 2013 Porsche Cayenne should accelerate faster than 1991 BMW 518. With that said, vehicle weight also plays an important factor in acceleration. 2013 Porsche Cayenne weights approximately 1000 kg more than 1991 BMW 518. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Porsche Cayenne is all wheel drive (AWD), it will have significant more traction and grip than 1991 BMW 518. In wet, icy, snow, or gravel driving conditions, 2013 Porsche Cayenne will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2013 Porsche Cayenne (515 Nm @ 3500 RPM) has 350 more torque (in Nm) than 1991 BMW 518. (165 Nm @ 4250 RPM). This means 2013 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW 518.
Compare all specifications:
| 1991 BMW 518 | 2013 Porsche Cayenne | |
| Make | BMW | Porsche |
| Model | 518 | Cayenne |
| Year Released | 1991 | 2013 |
| Body Type | Sedan | SUV |
| Engine Position | Front | Rear |
| Engine Size | 1766 cc | 4800 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | boxer |
| Horse Power | 114 HP | 414 HP |
| Engine RPM | 5500 RPM | 6500 RPM |
| Torque | 165 Nm | 515 Nm |
| Torque RPM | 4250 RPM | 3500 RPM |
| Engine Bore Size | 84 mm | 96 mm |
| Engine Stroke Size | 81 mm | 83 mm |
| Engine Compression Ratio | 8.8:1 | 12.5 : 1 |
| Fuel Type | Gasoline | Diesel / Electric Hybrid |
| Drive Type | Rear | AWD |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1160 kg | 2160 kg |
| Vehicle Length | 4730 mm | 4846 mm |
| Vehicle Width | 1760 mm | 2154 mm |
| Vehicle Height | 1420 mm | 1688 mm |
| Wheelbase Size | 2770 mm | 2895 mm |
